EN 5.998.4.0/07.24
1
PRODUCT ADVANTAGES
z Coil seals protect the solenoid system
z Wide variety of connectors available
z Excellent switching performance by high-performance HYDAC solenoid
z External surfaces with advanced corrosion protection thanks to ZnNi coating
(1,000 h salt spray test)
DESCRIPTION OF FUNCTION
When the solenoid coil is de-energised, the valve blocks ow in both directions. When
the solenoid coil is energised, there is free ow through the valve in both directions.
Notice:
Switching characteristics and response times are strongly dependent on the pressure
dierence and the ow rate during the switching process. This is especially the case for
valves with poppet seal.
FUNCTION
2/2 directional poppet valve
WS12W-01
Poppet type, pilot-operated, solenoid operated,
normally closed
Screw-in cartridge valve UNF – 350 bar
up to 110 l/min
up to 350 bar
2
1
1
2
EN 5.998.4.0/07.24
2
TECHNICAL CHARACTERISTICS
1)
Operating pressure max. 350 bar
Flow rate max. 110 l/min
Internal leakage Leakage-free, max. 5 drops/min (0.25 cm³/min) at 350 bar
Pressure uid Hydraulic oil to DIN 51524 Part 1, 2 and 3
Ambient temperature range min. -20 °C up to max. +60 °C
Temperature range of pressurised uid NBR: min. -30 °C up to max. +100 °C
FKM: min. -20 °C up to max. +120 °C
Viscosity range min. 7.4 mm²/s up to max. 420 mm²/s
Filtration Permitted contamination level of operating uid as dened by ISO 4406
<210 bar Class 20/18/15 or cleaner
>210 bar Class 18/16/13 or cleaner
MTTF
D
150 – 1200 years, assessment according to DIN EN ISO 13849-1:2016, Table C.1,
Conrmation of ISO 13849-2:2013; Tables C.1 and C.2
Installation position user-denable
Materials Valve body: Steel
Spool: Steel, hardened and ground
Seals: NBR (standard)
FKM (optional)
Support rings: PTFE
Cavity FC12-2
Weight 0.36 kg
0.55 kg with coil
Electric system
Response time Energised: Approx. 30 ms Greatly increased reaction times possible for
other operating conditions.
De-energised: Approx. 70 ms
Type of voltage DC: DC solenoid
AC: AC with rectier integrated in the coil
Voltage tolerance ±15 % of nominal voltage
Nominal current at 20 °C 1.5 A at 12 V DC
0.8 A at 24 V DC
Duty cycle 100 % duty cycle (continuous operation)
up to max. 115 % of the nominal voltage at 60 °C ambient temperature
Coil design Coil ... 40-1836
1)
See “Conditions and Instructions for Valves” in brochure 53.000.
EN 5.998.4.0/07.24
3
UNIT DIMENSIONS
2
1
76 max.
(2.99 max.)
Ø31.8
Ø1.25
62 max.
(2.44 max.)
40.3
(1.59)
13.1
(0.52)
2
(0.08)
45.9
(1.81)
* Tightening torque:
Steel housing (burst strength > 360 N/mm²): 119 Nm
Aluminium housing (burst strength > 330 N/mm²): 75 Nm
(With torque tool according to DIN EN ISO 6789, tool type II class A or B). Millimetre (Inch)
For more information, see “Operating conditions and instructions for valves” in brochure 53.000. Subject to technical modications.
Spanner width 32
Tightening torque*
23.8
(0.94)
Tightening torque* 4 Nm
After loosening the mounting
nut, the coil can be rotated
through 360° and removed.
Ø22.23
Ø0.88
1 1/16-2 UN-2A
76.5
(3.01)
65
(2.56)
50.8 (2) thick
2
1
6.5
(0.26)
26.6
(1.05)
76.5
(36.01)
57.2
(2.25)
8.6
(0.34)
75 max.
(2.95 max.)
61 max.
(2.40 max.)
Ø36.3
(Ø1.43)
To actuate the valve manually, remove
protective cap and turn the rotary knob
anticlockwise.
EN 5.998.4.0/07.24
4
MODEL CODE
WS12W – 01M – C – N – 24 DG
Designation
2/2 directional poppet valve, UNF
Version
01 = standard
01M = with manual override
Type of connection
C = Screw-in cartridge valve
Seal material
N = NBR (standard)
V = FKM (optional)
Nominal voltage for actuating solenoid
DC voltage:
12 = 12 V DC
24 = 24 V DC
AC voltage (rectier integrated into coil):
115 = 115 V AC
230 =230 V AC
Coil design (type 40-1836) Number of pins Connection Protection class
DC:
DG = design A acc. to DIN EN 175301-803 3-pole radial IP65
DK = KOSTAL plug connector M27x1 2-pole radial IP65/IP67
DL = two ying leads 0.75 mm² x 457 mm (18'') 2-pole radial IP65/IP67
DN = DEUTSCH plug connector DT04-2P 2-pole axial IP67/IP69
DO = M12 plug connector 4-pole radial IP65
DT = AMP Junior Timer 2-pole radial IP65/IP67
DU = AMP Junior Timer 2-pole axial IP65/IP67
AC:
AG = design A acc. to DIN EN 175301-803 3-pole radial IP65
Further versions on request.
CAVITY
FC12-2
*
Permitted boring zone (for block design) Millimetre
**
Sharp edges should be avoided by using a radius of 0.1 mm to 0.2 mm Subject to technical modications
Rz 10
Rz 6.3
Ra 6.3
38
1
±0.2
60° **
22.225
+0.05
[
21.23±1]
36.52
±0.2
47.5
±0.5
49.5
±0.5
21.6
±1
1 1/16-12 UN-2B
16.8 min.*
34.3 max.*
Max. Nominal-
Ø:
46.7
X
Rz1 10
Rz 6.3
Rz 6.3
VE
0.05
A B
0.05
A B
PD
0.02
B
A
R0.2
±0.2
R0.15
±0.05
45°
3.5
±0.2
30°
±1°
29.25
±0.05
X 4 : 1
Rz2 6.3
0.1
ACS
B
0.05
A B
ACS
1
2
Ø
6
Ø
21
Fitting Depth
(Included angle)
VE = Visual Examination
EX.:
EN 5.998.4.0/07.24
5
SAMPLE CHARACTERISTICS
Δp/Q - characteristics measured at ν = 33 mm
2
/s, T
Oil
= 46 °C
MATERIAL OVERVIEW
Standard models
Designation Part no.
WS12W-01-C-N-12DG 4802490
WS12W-01-C-N-24DG 4802491
WS12W-01M-C-N-12DG 4802492
WS12W-01M-C-N-24DG 4802493
Further versions on request.
Spare parts, seal kits
Designation Material Code Part no.
FC12-2 seal kit NBR FS UNF 12/S2/N 3651537
FC12-2 seal kit FKM FS UNF 12/S2/N 3651539
Housing
Designation Material Code Pressure max. Connections Weight Part no.
Inline connection housing Aluminium, anodised FH122-AB6 210 bar G3/4" 0.47 kg 3053843
Inline connection housing Steel, zinc-plated FH122-SB6 350 bar G3/4" 0.16 kg 3053782
Cavity tools
Designation Part no.
Countersink 176951
Reamer 176952
NOTE
The information in this brochure relates to the operating conditions and elds of application
described. For applications and operating conditions not described, please contact the
relevant technical departments.
Subject to technical modications.
Documents are only valid if they have been obtained via the website and are up-to-date.
HYDAC FLUIDTECHNIK GMBH
Justus-von-Liebig-Str.
66280 Sulzbach/Saar
Germany
Phone: +49 6897 509-01
Email: valves@hydac.com
Internet: www.hydac.com
1 → 2, 100% I
max
2 → 1, 100% I
max
200
175
150
125
100
75
50
25
40
Pressure drop Δp
Flow rate Q
0
2
4
6
8
10
12
10 20 30 50 60
70 80
90
100 110
0 10 15
20 25
[bar][psi]
[l/min]
[gpm]
0
14
0
5
